Combination band or tube corrugating and flanging machine



s "n R COMBINATION BAND 0R TUBE CORRUGATING msn 1mm-fm@ Mmmm@ Filed Nav. e w23 4 Smets-sheet 1 j Sept. 2 E924 ,507,424

c. B. PRITCHARD COMBINATION BAND 0R TUBE CORHUGATING AND FLANGYING HACHINE 4 Sheets-Sheet 2 inventor seme 2 w24@ ummm v c. B. PRITQHARD COMBINATION BAND OR TUBE CORRUGATING AND FLANGING MACHINE Filed Nov. 6, 19225 4 Shana-Shea?. 3

Sag@& 2 c. B. PRQTCHARD COMBINATION BAND OR TUBE CORRUGATING AND FLANGING MACHINE Filed Nov. 6, 1923 Sh'S-Sheat 4 l@ @L @n Patented Sept. 2, 1924.

UNITED STATES PATENT ori-legE COMBINATION BAND OR TUBE CORRUGATING AND FLANGING MACHINE.

Application filed November 6, 1923. Serial No. 678,102.

To all whom z't may concern:

Be it known that l, CARL B. PRrroHARD,`

a citizen of the United States, residing at Scottdale, in the county of Westmoreland and State of Pennsylvania, have invented certain new and useful Improvements in Combination Band or Tube Corrugating and F langing Machines, of which the following is a specification.

This invention relates to a combination corrugating and Hanging machine whereby pre-formed tubes or bands may be first corrugated and then flanged for providing the rims of bull wheels of well digging or pumping rigs, the primary object of the invention residi g in the provision of such a means whereiii one tube or band may be corrugated simultaneously with the Hanging of a tube or band that has been previously corrugated.

An additional and important object of this invention is to provide thecombination corrugating and Hanging machine for tubes or bands wherein pre-formed sheet metal tubes or bands of widely varying dimensions and especially the circumferential area thereof may be properly corrugated. and then flanged for forming said bull wheel rim.

An additional object of the invention to provide a machine of the above character wherein the same comprises a pair of driving rolls, one for the corrugating action and the otherpfor the Hanging action together with a pair of cooperating forming rolls whereby said forming rolls are slowly fed in a direction toward said driving rolls simultaneously with the rotation of said driving rolls and through the medium of a single power unit.

A still further object of the present invention is to provide a means whereby said forming rolls may be quickly returned to their primary inoperative positions and this without the usual necessity of stopping and then again starting the operation of the machine.

With the above and various objects in view and others that will be apparent as the nature of the invention is better understood, the same comprises the novel form, combination, and arrangement of parts, herein.- after more fully described, shown in the accompanying drawings and claimed.

Iny the drawings, wherein like reference for characters indicate corresponding parts throughout the different views:

Figure 1 is a side elevational view of a combination tube or band corrugating or Hanging machine constructed in accordance with this invention.

Fig. 2 is a top plan view thereof, the tubes or bands being corrugated and Hanged respectively and being fragmentarily shown in cross section.

Fig. 3 is a rear elevational view of the machine showing but one tube or band, and this in cross section, said tube or band being corrugated.

Fig. 4 is an enlarged fragmentary longitudinal sectional View, taken substantially upon the line 4 4 of Fig. 2, for more clearly disclosing the form of drive mechanism between a horizontal driven shaft at the rear of the machine and the screw shaft operatively connected to the carrier of the forming roll for the corrugating or Hanging operation as the case may be, the relatively large worm gear carried by the outer end of said screw shaft for intermesh with the cooperative worm gear carried by said driven shaft being removed,

Fig. 5 is a view similar to Fig. 4, and taken substantially upon the line 5 5 of said Fig. 2 for disclosing the clutch mechanism and sprocket gear formation, said clutch mechanism adapted to be controlled for causing the rotation of said driven shaft in a forward or rearward direction as the case may be for controlling subsequently the slow forward movement of said forming roll or the quick return movement thereof,

Fig. 6` is an enlarged top plan view of a pair of adjustable Hanged roller receiving elements employed in conjunction with the present machine, said pair of roller supports being so formed as to support the rollers at different elevations, said rollers adapted at their different elevations to in turn support the band/or tube while it is undergoing'its corrugating operation, it being necessary in this instance that said pair of roller supporting elements be supported within a well or at a point beneath the level of the machine urposes to be presently set forth in the ollowing detailed description,

Fig. 7 is an end elevational view of said pair of Hanged roller sup Orts,

Fig. 8 is an enlarged e evational view of forming rolls.

of the removable plates t parts of the forming roll carrier nudes, and

Fig. 9 is an enlarged detailed transverse sectional view, taken substantially upon the line 9 9 of Fig. 2, but showing 1n`rear elevation one of the forming roll carriers as well as its guide means,

Fig. 10 is an end elevational view of a stub shaft supporting standard 'forming' an essential part of the present machine.

Fig. 11 is an enlarged erspective of one liat form essential Fig. 12 is an elevational view o one of the plurality of roller carrying shafts employed 1n conjunction with the present machine.-

.Now having particular reference to the drawings, my improved combination tube corrugating and Hanging machine comprises among other elements a solid base 5 of relative T-shape as shown lclearly in Fig. 2., said base being flanged at 6 entirely around its edges and provided with openings 7,

Fig; 1, wherein the same may be anchored :to the Hoor or upon a concrete base -or support, of a shape similar to said machlne base 5, and of-a suHicient height, it being'well to state at this time, that should said machinebase be anchored to the work shop Hoor, it will be necessary to provide at opposite sides of the longitudinal portion of the machine base, relatively deep wells or pits for allowing the ,tubes or bands bein corrugated or Han ed to extend therein an to be supported uring their corrugating operation -upon suitable adjustableI rollers, which 'rollers are removably adjustably associa-ted with supports of the type more clearly disclosed in Figs. 6 and 7 to be hereinafter more fully described.

Adjacent the inner end of the longitudinal portion of said relatively T-'shaped machine base 5, and suitably journalled adjacent .its opposite ends is a transversely extending shaft 8, the opposite ends of which extend beyond the sides of said longitudinal portion of the machine base, and to which are keyed corrugating and Hanging driving rollers 9 and 10 respectively. At this time, ,it might be well to state that I do not wish to be limited to an specific form of corrugating or Hangin@ riving rolls as in the future 4practice of t c invention, any

desirable type thereof can be employed that f is compatible with the purposes of the present invention.

Keyed to said transverse driving roll carrying shaft and intermediate the ends therel of is a relativel large spur ear11, that'has mesh with a lre atively smal er s ur ar 12 keyed to a transverse shaft'13 s iglht y forwardly of said shaft 8 and suite. ly jourlnailed in spaced bearings 14. Also keyed to said last mentioned shaft 13 and spaced from said relatively small spur gear'f12 is a relatively larger spur gear 15 thatiis in turn in mesh with a small spur gear 16 upon the inner end of the armature shaft 17 of a, high powered electric motor 18 that is suitably supported upon the machine base 5 adjacent its Afront end. It will thusbe seen that by the provision of the gear train comprising the gear elements 11, 12, 15 and 16, there will be a substantial reduction in speed between said shaft 17 of the motor 18 and the transverse driving roll carrying shaft 8.

Directly rearwardly of the corrugating and Hanging driving rolls 9 and 10 respectively, and upon the transverse portion of the before described machine 'base 5 are pairs of spaced forming roll 'carrier guide bars designated genera ly '19 and longitudinally movable within the respective pairs of which are the corrugating and Han 'ng In Fi 9.wherein there is illustrated .in l

greater etail the spaced guides 19 and carrier 21 complementary to the Hange forrn-` ingaroll, it will be noted that said guides 19 are formed inte rallyy by casting or the like with the machine base 5, and that the same are formed at their inner longitudinal edges with channels 22 for providing run- Ways for L-shaped runners 23 ofthe ccmplementary -roll Jforming carriers 20 and 21 as the 4case may be.

'Detachably secured to the top sidesof the guides 19 preferably through the medium of olts 24 are retaining strlps 25, the inner edges of which extend over the protruding edges of said L-shaped runners 23 for consequently preventing any vertical thrust of the respective carrier, and also for allowing `the same to be removed 'from the guides 19 for repair or renewal purposes after said plates 25 have been removed.

The L-shaped `runners 23 of each of the forming roll carriers 20 and 21 are integrally connected adjacent their rear ends by a cross web 26, the front ends of said runners 23 bein formed with vertically' extending coaxia shaft bearings 27 Within which arel A,rotatable .the opposite ends of the Hange formlng roll carrying shaft 29 and corrugating forming roll carrying shaft 30 respectively. lLoose upon the shaft 29 is the flanged forming roll 31 that is of cast steel and terminates at Aits opposite ends into flanges 32, this roll cooperating with the flange forming driving roll 10 to form inwardly extending flanges a upon the opposite ends of the previously corrugated sheet metal band or tube b in a mhnner to be hereinafter more fully described.

Loose upon the shaft 30 of the before-described carrir is a cast steel corrugating forming roll 33 that is of ashape that is necessarily complementary to the shape of a corrugating driving roll 9, and cooperates with said driving roll 9 during the operation of the machine to force certain portions of the before-mentioned band or tube b into the grooves of the driving roll 9 as said forming roll 33 moves slowly in afdirection thereto for consequently forming corrugations in said band or tube as clearly shown in Figs. 2 and 3, and this in a manner also to be hereinafter more fully described.

Upon the opposite projecting ends of the corrugating forming roll carrying shaft are swingably disposed arms 34, the front ends of which are equi ed with removable inwardly projecting gui e rollers 35 that engage the opposite edges of the band or tube being corrugated, and this before the corrugating action has started, for consequently maintaining said band or tube in a position to assure the formation of the corru ations at a oint directly intermediate the e ges of said band or shoe.

The rear ends ofthe roller carrying arms 34 engage beneath outwardly extending lugs 36 formed u on opposite sides of the form- 'ing roll carrier 20, Fig. 1, for limiting the downward swinging movement of said arms as will be obvious.v

Journalled at its opposite ends in pairs of spaced and raised bearings 37 and 38 res ectlvely and slightly beyond the rear en of the machine frame 5 is a cross shaft 39 that is equipped adjacent its opposite ends at points within the said bearings with worms 40 and 41 respectively that have mesh with relatively large worm gears 42 and 43 u on the reduced ends 44 of forwardly exten lng feed screws 45, specifically shown in Fig. 8.

Each of these feed screws 45 includes a plain portion 46 for rotation within a suitable bearing 47, Fig. 2. The threaded. portions of said feed screws ,engage within threaded boxin 48 carried by the connecting webs 26 o the respective forming roll carriers 20 and 21 for manifestly causin forward or rearward sliding movement o said carriers when sa-id cross shaft 39 is rotated in op 'site directions.

As more c early shown in the enlarged detail sectional view in Fig. 4, each of the worms 40 and 41 are loose upon said cross shaft 39 and each is formed with an inwardly extending bearing sleeve 49 that engages through the innermost one of its respective pair of bearings asat 37 or 38, and terminates in a flange 5() formed with a suitable clutch teeth 51 for cooperation with a movable clutch element splined upon said shaft 39, the one complementary to the worm 41 being designated 52 while the one complementary to'the other of said worms 40 being designated 53, it being manifest that when Hsaid shaft 39 is rotated, these clutch elements may be engaged or disengaged with or from the clutch teeth upon the ends of the sleeve 49 of the respective worms 40 or 41 for consequently causing the operation or inoperation as the case may be of the forming rolls 31 and 33.

Loose u on the shaft 39 and at a point slightly o center of said shaft is a pair of clutch collars designated respectively 54 and 55, Fig. 5, the clutch faces of said collars being opposed and adapted to be selectively secured to said shaft 39 by a double-ended complementary clutch element 56 splined to said shaft 39 intermediate the clutch collars 54 and 55. Each of these loosely mounted clutch collars 54 and 55 is formed adjacent its inner end With a circular flange 54 and respectively to the inner face of each of which is secured a sprocket gear ring 54" and 55 respectively.

Trained over the sprocket gear 55 is an endless sprocket chain 57 that extends forwardly and is in turn trained over a relatively larger sprocket gear 58, Fig. 1, keyed to the before mentioned transverse shaft 3, upon the opposite ends of which are mounted the driving rolls 9y and 10, it being of course obvious that when ,the movable lclutch element 56 is engaged with the clutch collar 55 and after the clutch elements 52 and 53 have respectively connected the worms 40 and 41 to the shafty 39, the opeeration of the electric motor 18 will slowly rotate the shaft 39 for consequently slowly feeding the forming rolls 31 and'33 in a direction toward the driving rolls 9 and 10, which, after the iin-worked upon band or tube and one that has been corrugated have been positioned over the respective 'driving rolls 9 and 10 and properly supported in a manner to be hereinafter more fully described, said slow feeding movement of the forming rolls will'conse uently be resultant in t e corrugating or anging of the tubes or bands as' the case may be. i

One end of the foremost cross shaft 13 is equipped with a clutch member 59, free upon said shaft andl being formed with a rel atively large sprocket gear 60 over which is trained an endless sprocket chain 61 that extends rearwardly and upwardly and is in turn *trained over a relatively smaller sprocket gear upon the inner end of a stub shaft 62, which stub shaft is suitably journalled within the upper end of a vertical post 63, Fig. 10. This post is preferably of the shape shown and is adapted to be secured at its lower 'end through the medium of bolts or other suitable fastening means to the machine base 5.

The other end of said shaft 62 is equipped with a similar sprocket gear over which is trained a rearwardly and downwardly eX- tending endless sprocket chain 64. This last mentioned sprocket chain 64 is in turn trained over the sprocket ring gear 54 of the clutch member 54 upon the before de-v scribed cross shaft 39, and in view of this gearing arrangement it will of coui'se be obvious that by connecting the gear 60 to the foremost cross 'shaft' 13 through the medium of a clutch element 59 that is splined upon said shaft and adapted for cooperation with the clutch element 59 and a disconnection of the sprocket gear carrying clutch lmember 55 uponthe rearmost cross shaft 39, and a consequent connection ofthe gear carrying clutch element 54 to said shaft 39 thru the medium of the double ended movlprovide means for allowing the same to extend beneath the machine base, and in order to accomplish this, it isnecessary, as before set forth, to either provide .pits or wells at o posite sides of the longitudinal portion o the machine base or to mount 'the machine a sufficient height above the floor-level. In either instance, it is necessary that a. supporting and guide means be provided for the tubes or bands to rest upon while undergoing both their corrugating and Hanging operations, these supporting and guide means maintaining the bands 'or tubes being worked upon in proper positions with respect to their driving rolls and for allowing the same to freely rotate when the same are forced into engagement with the driving rolls by the forming rolls to the frictional contact therebetween, said guiding and supporting means also' reventing the tubes from horizontally wobb ing which would otherwise cause the corrugations or fianges to be improperly formed. j

W'ith particular reference to Figs. 6 and 7 wherein there is detailed one of said guiding and supporting means, 65 designates a substantially rectangular shaped base plate that is flanged at its opposite ends and provided with openings-66 whereb v said base plate may be suitably anchored through the medium of bolts or the like through the bottom of its corresponding well or pit or 'to the machine shop floor. n This base plate 65 is formed upon opposite4 edges with upstanding flan es 6T between which and upon said base p ate are adjustable a pair of plates 68, 68. Said base plate 65 is formed centrally-with a longitudinal undercut slot 69, within which are movable the heads of bolts 70 that are carelevations and that the pairs of rests at opi posite' ends of said plates 68 are co-aXial with each other. strength, the integrally joined pairs lof rests at opposite ends of the plates 68, 68, are integrally joined together by a, cross web 74.

For detachable selective positioning at their opposite ends upon either the upper or lower co-axial rests of each plate 68 areV cross shafts 7 5 7 5, Figs. 1 and 12. Inwardly of the ends of each of these shafts 75 are flanged rollers 76 upon which engage the opposite edges of the tubes or bands being corrugated or flanged, it being of course apparent that whentubes or bands of relatively great circumferential area are being worked upon, these shafts 5-75 will be positioned upon the lowerinost rest,and that For the purpose ofl when tubes or bands of a lesser circumferential area are being Worked upon, said shafts will' be positioned upon the uppermost rest as more clearly shown by the full and dotted lines of Fig. 1.

The tubes or bands in the original form, that is, before undergoin their corrugating operations are in someviat of an elliptic formation, and it is therefore necessary in order to obtain the proper corrugating ef feet to support said tubes or bands from above as well as below, and for accomplishying this, there is provided upon the side of the machine frame adjacent the corrugat-,

ing forming roll 9, a vertical post or stand. ard 77, that is formed at its upper'feiid and at opposite sides thereof With pairs of co-axial shaft end rests 78, the rests of each pair being also atdifferent elevations and ada ted for the selective reception of a crossL sha t 79, that carries'adjacent its opposite ends flanged rollers 80, upon which enga e the opposite upper edges of the band or tu e being corrugated andas more clearly shown inl Fig. 3. l i

In View of the fact that while undergoing their corrugating operation, the bands or tubes assume a true circular shape, it is not necessary toprovide a sim-ilar supportat the opposite side of the machine for supportincr the corrugating band or tube being Hange In view of the above, it will be at once apparent that the 11n-worked upon band or tube b may be positioned upon the corrugating side of the machine inta manner shown by the dotted lines in Fig. 1, itbeing of lcourse noted that this band or tube will contact'with the driving wheel 9 at its front si'de and in View of the fact that'the same is supported from above and below in such a manner as to firmly engage said driving wheel 9, this band or tube will be rotated after the forming roll 33 has been moved into engagement therewith, and upon its continued movement of this forming roll 33, toward this band, the ribs of the forming wheel will manifestly force certain portions of the band material into the circumferential grooves of the driving wheel 9 for effectively corrugating the same.

After the band has been corrugated, ce1?- tain of the movable clutch elements are actuated to control the quick reversal of move* ment of Said forming roll 33 after which the machine may be stopped. A new tube or band is placed upon the driving roll 9 while the corrugated band or tube may be properly :positioned upon the driving roll 10 for the angin operation for consequently simultaneous y ycorrugating and Hanging a pair of tubes or bands at a single operation.

It will of course be manifest that after the corrugated band or tube has been p0- sitioned upon the driving roll 10. the Hanges 3Q at opposite ends of the `forming roll 31 will force the protruding edges ofthe band or tube inwardly for consequently Hanging the same, this Hanging operation being produced by the slowmovement of the forming wheel 3l toward its complementary driving wheel l0.

It is necessary that the flanged forming roll 31 have a greater movement toward its complementary driving roll l() than the cor'- rugating forming roll 33 toward its complementary driving roll 9, and it will be necessary for the operator to disconnect the worm .41 from the shaft 39 through the medium of the movable clutch element 52 after the band or tube has been properly corrugated.

After the simultaneous corrugating and Hanging operations, the diHerent movable clutch elements are so controlled as to allow for the quick simultaneous return of both of the forming rolls.

It will thus be seen that I have provided a highly useful and eHicient machine for corrugating and Hanging tubes or bands and this especially while they are in their original cold state, and a machine that will perout departin form. said operations simultaneously, and this through the medium of but a single power plant.

I have herein shown and described, a combination corrugating and Hanging machine consisting of certain detailed structural elements it being nevertheless understood that I do not wish to limit myself to said detailed structural elements,and in the future practice of the invention these m'ay bc changed to suit different demands or occasions witht'rom the spirit and scope of the appende claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a corrugating and Hanging machine of the character described, a base, co1'- rugating and Hanging driving rolls mounted for rotation upon said base, corrugating and Hanging forming rolls also mounted upon said base and adapted for respective cooperation with said drivinfr rolls, means for actuating said driving ro ls and simultaneously actuated means for controlling the slow movement of said forming rolls in a direction toward said driving rolls, and means for stopping` the movement of said forming rolls either jointly or singly.

2. Ina corrugating andHanging machine for sheet metal bands, a corruga'ting and a Hanging driving roll, means for rotating said driving rolls simultaneously, a pair of longitudinally movable forming rolls for respective cooperation with said driving rolls, means operable simultaneously with the operation of said driving rolls for mov ing said t'orming rolls in a direction toward said driving rolls in a relatively slow f manner, and means for causing the quick return of either or both of said forming rolls.

3. In a corrugating and Hanging machine, a base, corrugating and Hanging driving rolls disposed for rotation upon said base, a pair of longitudinally movable forming rolls slidably disposed upon said base and adapted for respective cooperation with said corrugating and Hanging driving rolls, a power plant upon said base, and means operable by said power plant for causing the movement of said formin rolls in a direction toward kor away rom said driving'rolls simultaneously with the operation of said driving rolls.

4. In a corrugating and Hanging machine of the character described, a base, corrugating and Hanging driving rolls mounted for rotation upon said base, cooperating forming rolls longitudinally slidable upon said base in directions toward or away from their respective driving rolls, a power plant, means for controlling the slow movement of said forming. rolls either jointly or singly in loo a directiontoward said driving rolls and simultaneously with the operation of said driving rolls, and means for controlling the quick return of said forming rolls either jointly or singly also during the rotation of said driving rolls.

5. In a corrugating and Hanging machine of the character described, a base, a corrugated driving roll disposed for rotation upon said base and over whichi is to be engaged a corrugated tube of relatively wider dimensions than said driving roll, a forming roll flanged at its opposite ends disposed for sliding movement upon said base in directions toward or away. from said driving roll, the flanges of said forming roll adapted for engagement with the protruding ed es of the tube being flanged, and means or simultaneously rotating said driving roll and for moving said forming roll roll for consequently forcing the protruding edges of said tube inwardly.

6. In a tube corrugating machine, a base,l

a corrugated driving roll mounted for rotation upon said base and around which the tube to be corrugated moves,a hanger and a support for the tube being corrugated forwardly of said driving roll, a cooperating forming roll slidably movable in opposite directions upon said base, means simultaneously with the operation of said driving roll for forcing said forming roll into engagement with said driving roll for corrugatin said tube, said hanger and support being adjustable to tubes of varying circumferential areas.

In testimony whereof I aiixmy ture.

I signa- CARL B. PRITCHARD. 

